Phenom II X3 P820 vs Ryzen Threadripper PRO 5945WX
Aggregate performance score
Ryzen Threadripper PRO 5945WX outperforms Phenom II X3 P820 by a whopping 3684% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 253 | 2945 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | AMD Ryzen Threadripper | 3x AMD Phenom II |
| Power efficiency | 3.46 | 1.02 |
| Designer | AMD | AMD |
| Manufacturer | TSMC | no data |
| Architecture codename | Chagall PRO (2022) | Champlain (2010−2011) |
| Release date | 8 March 2022 (3 years ago) | 12 May 2010 (15 years ago) |
Detailed specifications
Ryzen Threadripper PRO 5945WX and Phenom II X3 P820 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 12 (Dodeca-Core) | 3 (Tri-Core) |
| Threads | 24 | 3 |
| Base clock speed | 4.1 GHz | no data |
| Boost clock speed | 4.5 GHz | 1.8 GHz |
| Bus rate | no data | 3600 MHz |
| Multiplier | 41 | no data |
| L1 cache | 64K (per core) | 384 KB |
| L2 cache | 512K (per core) | 1.5 MB |
| L3 cache | 64 MB | no data |
| Chip lithography | 7 nm | 45 nm |
| Die size | 4x 81 mm2 | no data |
| Maximum case temperature (TCase) | 95 °C | no data |
| Number of transistors | 16,600 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Ryzen Threadripper PRO 5945WX and Phenom II X3 P820 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | no data |
| Socket | WRX8 | S1 |
| Power consumption (TDP) | 280 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper PRO 5945WX and Phenom II X3 P820. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a) |
| AES-NI | + | - |
| AVX | + | - |
| VirusProtect | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen Threadripper PRO 5945WX and Phenom II X3 P820 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 5945WX and Phenom II X3 P820. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR3 |
| Maximum memory size | 2 TiB | no data |
| Maximum memory bandwidth | 204.8 GB/s | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper PRO 5945WX and Phenom II X3 P820.
| PCIe version | 4.0 | no data |
| PCI Express lanes | 128 | no data |
Pros & cons summary
| Performance score | 24.22 | 0.64 |
| Recency | 8 March 2022 | 12 May 2010 |
| Physical cores | 12 | 3 |
| Threads | 24 | 3 |
| Chip lithography | 7 nm | 45 nm |
| Power consumption (TDP) | 280 Watt | 25 Watt |
Ryzen Threadripper PRO 5945WX has a 3684.4% higher aggregate performance score, an age advantage of 11 years, 300% more physical cores and 700% more threads, and a 542.9% more advanced lithography process.
Phenom II X3 P820, on the other hand, has 1020% lower power consumption.
The AMD Ryzen Threadripper PRO 5945WX is our recommended choice as it beats the AMD Phenom II X3 P820 in performance tests.
Be aware that Ryzen Threadripper PRO 5945WX is a server/workstation processor while Phenom II X3 P820 is a notebook one.
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